CVE-2026-9842 | The Backstage - Customizer Demo Access plugin for WordPress … | CVSS 7.5 HIGH

Description

The Backstage - Customizer Demo Access plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.4.2. This is due to the plugin assigning the `manage_options` capability to the `backstage_customizer_user` demo role, which is more permissive than necessary for Customizer-only demo access. This makes it possible for unauthenticated attackers to navigate beyond the Customizer and update arbitrary WordPress options such as `default_role`, leading to privilege escalation.

Metadata

CVE ID: CVE-2026-9842
State: PUBLISHED
Assigner: Wordfence
Reserved: 2026-05-28 13:26 UTC
Published: 2026-07-08 04:30 UTC
Last updated: 2026-07-08 04:30 UTC
Primary CWE: CWE-269
CWE-269 Improper Privilege Management
Vendor / Product: pixelgrade / Backstage – Customizer Demo Access
Sources: cve.org · NVD

Severity & Metrics

7.5 HIGH CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products (1)

Vendor	Product	Platform	Versions
pixelgrade	Backstage – Customizer Demo Access	—	0 ≤ 1.4.2

Weakness (CWE)

CWE	Source	Description
CWE-269	cna	CWE-269 Improper Privilege Management

CVSS scores (1)

Score	Severity	Version	Source	Vector
7.5	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References (3)